CN209558933U - A kind of shell-tube type steam exhaust recycling heat-exchanger rig - Google Patents
A kind of shell-tube type steam exhaust recycling heat-exchanger rig Download PDFInfo
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- CN209558933U CN209558933U CN201822136567.8U CN201822136567U CN209558933U CN 209558933 U CN209558933 U CN 209558933U CN 201822136567 U CN201822136567 U CN 201822136567U CN 209558933 U CN209558933 U CN 209558933U
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Abstract
The utility model provides a kind of shell-tube type steam exhaust recycling heat-exchanger rig, it is related to steam exhaust recovery technology field, including shell and tube condenser and helical fin formula heat exchanger, the cooling water inlet connection recirculated cooling water of shell and tube cooler is discharged pipe network, the cooling water inlet of the cooling water outlet connection helical fin formula heat exchanger of shell and tube cooler, the reflux pipe network of the cooling water outlet connection recirculated cooling water of helical fin formula heat exchanger；The steam exhaust entrance of shell and tube cooler is connected to steam exhaust pipe network, the steam exhaust entrance of the steam exhaust outlet fin shell and tube condenser of shell and tube cooler, the steam exhaust outlet steam exhaust discharger of fin shell and tube condenser, the utility model is designed reasonably, it is exchanged heat using two-part, the heat exchange area of steam exhaust side is increased, the heat exchange efficiency of condensation second half section is effectively increased.
Description
Technical field
The utility model belongs to steam exhaust recovery technology field, recycles heat-exchanger rig more particularly to a kind of shell-tube type steam exhaust.
Background technique
In boiler afterheat removal process, such as the heat sources such as boiler tail flue gas, fixed row, platoon are all further recycled
It utilizes, avoids the waste of mass energy；Condensed water, demineralized water are after oxygen-eliminating device thermal de-aeration, and incondensable gas is by gland steam exhauster
Drain into atmosphere.Because during incondensable gas is discharged, entrainment portions steam, the portion gas is generally referred to as steam exhaust.
There are mainly two types of existing steam exhaust ways of recycling, and one is a coil heat exchanger is used, cooling medium flows through disk
Pipe exchanges heat with steam exhaust, and while coolant temperature increases, the vapor morning coil surface in steam exhaust condenses, and steam exhaust is single
Coil exchanger condenses phase transformation.In the second half section of condensing heat-exchange, the problem of decline there are a heat exchange efficiency, other coil pipe
It is limited in the capacity gauge of the condensed water to tube wall surface；Another kind is directly to mix steam exhaust with cooling water, inside equipment
By sufficient mass transfer, heat transfer, using the method for this steam-water mixing, (including the incoagulability of gas content in cooling water is increased
Gas), influence the good operation of last part technology.
Utility model content
The purpose of this utility model is just to provide a kind of shell-tube type steam exhaust recycling heat-exchanger rig, solves the prior art not
Foot place.
The purpose of this utility model is realized by following technical proposals:
A kind of shell-tube type steam exhaust recycling heat-exchanger rig, including shell and tube condenser and helical fin formula heat exchanger；
The shell and tube condenser is equipped with the first cooling water inlet, the first cooling water outlet, the first steam exhaust entrance, first weary
Vapor outlet and the outlet of the first condensation water；
The helical fin formula heat exchanger is equipped with the second cooling water inlet, the second cooling water outlet, the second steam exhaust entrance, the
Two steam exhaust outlet and the outlet of the second condensation water；
Shell and tube condenser is connected to recirculated cooling water by first cooling water inlet and is discharged pipe network, and the first cooling water goes out
The second cooling water inlet of mouth connection, helical fin formula heat exchanger are connected to recirculated cooling water return pipe by the second cooling water outlet
Net；Shell and tube condenser is connected to steam exhaust pipe network, first steam exhaust outlet the second steam exhaust entrance, spiral by the first steam exhaust entrance
Finned heat exchanger passes through the second steam exhaust outlet steam exhaust discharger；Shell and tube condenser by the first condensation water outlet,
Helical fin formula heat exchanger is respectively communicated with condensation water pipe network by the outlet of the second condensation water.
Further, the condensation water pipe network is equipped with to the shell and tube condenser and helical fin formula heat exchanger guarantor
Hold the constant pressure arrangement of pressure.
Preferably, the constant pressure arrangement is U-shaped water seal.
Further, the shell and tube condenser and helical fin formula heat exchanger are vertically arranged, first cooling water
Entrance is set to shell and tube condenser upper end, and first cooling water outlet is set to shell and tube condenser lower end, first steam exhaust
Entrance is set to shell and tube condenser lower end；Second cooling water inlet be set to helical fin formula heat exchanger upper end, described second
Cooling water outlet is set to helical fin formula heat exchanger lower end, and the second steam exhaust entrance is set to helical fin formula heat exchanger lower end.
Further, first cooling water inlet is connected to the tube layer of shell and tube condenser with the first cooling water outlet,
The first steam exhaust entrance and the first steam exhaust outlet are connected to the shell of shell and tube condenser；Second cooling water inlet and
Two cooling water outlets are connected to the tube layer of helical fin formula heat exchanger, and the second steam exhaust entrance and the second steam exhaust outlet are connected to
The shell of helical fin formula heat exchanger.
Further, the recirculated cooling water water outlet pipe network is equipped with cooling water water supply at the first cooling water inlet and adjusts
Valve, the recirculated cooling water reflux pipe network are equipped with temperature sensor at the second cooling water outlet.
Further, the recirculated cooling water water outlet pipe network is connected to technique desalination water storage bin.
It further, further include process water pipe network, the process water pipe network is connected to the recirculated cooling water return pipe
Net, process water pipe network are equipped with cooling water at recirculated cooling water reflux pipe network and go out water regulating valve.
Compared with prior art, the utility model has the beneficial effects that:
When using the utility model, condensation cycle water is discharged into shell and tube condenser first, while steam exhaust is also passed into column
Trumpet cooler, steam exhaust carry out first time heat exchange with recirculated water in shell and tube condenser, and condensate liquid is exported from the first condensation water
Discharge, recycles most of heat and steam in steam exhaust, and condensed water and on-condensible gas enter helical fin formula heat exchanger and carry out the
Secondary heat exchange, since the heat exchange area of helical fin formula heat exchanger is larger, heat transfer process realizes new hot-fluid balance, improves cold
The heat exchange efficiency of solidifying second half section, condensate liquid are exported from the second condensation water after collecting and are discharged, further in steam exhaust heat and
Steam is recycled.
The utility model is designed reasonably, structure are simple, and failure rate is low, stable, to the heat and steam in steam exhaust
The rate of recovery is higher, using a shell and tube condenser and helical fin formula heat exchanger, solves steam exhaust in condensing recovery, heat exchange
The problem of efficiency causes heat exchange efficiency to decline with condensate moisture precipitation, is divided into two parts for condensation process, is exchanged heat using two-part.
Helical fin formula heat exchanger is used in the second half section of condensation process, so that steam exhaust side heat exchange area is increased, heat transfer process is realized
New hot-fluid balance, improves the heat exchange efficiency of condensation second half section；Steam-water separation, no mass transport process avoid not coagulating in cooling water
The secondary increase of property gas.
For helical fin formula heat exchanger while increasing heat exchange area, the droplet for condensing surface is along the fin spiral shell
It screws off and falls, liquid-drop diameter constantly increases, and is more conducive to condensation water collection.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of shell-tube type steam exhaust recycling heat-exchanger rig provided by the embodiment of the utility model；
Fig. 2 is that a kind of structure with DCS of shell-tube type steam exhaust recycling heat-exchanger rig provided by the embodiment of the utility model is shown
It is intended to；
Appended drawing reference: 1- shell and tube condenser, the first cooling water inlet 11-, the first cooling water outlet of 12-, 13- first
Steam exhaust entrance, the first steam exhaust of 14- outlet, the outlet of the first condensation water of 15-, 2- helical fin formula heat exchanger, the second cooling water of 21- enter
Mouthful, the second cooling water outlet of 22-, 23- the second steam exhaust entrance, the second steam exhaust of 24- outlet, the outlet of the second condensation water of 25-, 3- circulation
Cooling water outlet pipe net, 31- cooling water feed-regulating valve, 4- recirculated cooling water reflux pipe network, 41- temperature sensor, 5- steam exhaust
Pipe network, 6- steam exhaust discharger, 7- condensation water pipe network, 71- constant pressure arrangement, 8- process water pipe network, the water outlet of 81- cooling water are adjusted
Valve, 9- shut-off valve.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
Term " first ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relatively heavy
The property wanted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
It is logical.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood with concrete condition
Meaning.
Embodiment
As shown in Figure 1, heat-exchanger rig is recycled in a kind of shell-tube type steam exhaust, including shell and tube condenser 1 and helical fin formula are changed
Hot device 2；
Shell and tube condenser 1 is equipped with the first cooling water inlet 11, the first cooling water outlet 12, the first steam exhaust entrance 13, the
One steam exhaust outlet 14 and the first condensation water outlet 15；
Helical fin formula heat exchanger 2 is equipped with the second cooling water inlet 21, the second cooling water outlet 22, the second steam exhaust entrance
23, the second steam exhaust outlet 24 and the second condensation water outlet 25；
Shell and tube condenser 1 is connected to recirculated cooling water by the first cooling water inlet 11 and is discharged pipe network 3, and the first cooling water goes out
Mouth 12 is connected to the second cooling water inlets 21, and helical fin formula heat exchanger 2 is connected to recirculated cooling water by the second cooling water outlet 22
Flow back pipe network 4；Shell and tube condenser 1 is connected to steam exhaust pipe network 5,14 connection second of the first steam exhaust outlet by the first steam exhaust entrance 13
Steam exhaust entrance 23, helical fin formula heat exchanger 2 pass through 24 connection steam exhaust discharger 6 of the second steam exhaust outlet；Shell and tube condenser 1
Condensation water pipe network is respectively communicated with by the second condensation water outlet 25 by the first condensation water outlet 15, helical fin formula heat exchanger 2
7；It is discharged on pipe network, recirculated cooling water reflux pipe network, steam exhaust pipe network, condensation water pipe network and process water pipe network in recirculated cooling water
It is equipped with the shut-off valve 9 to be opened and closed pipe network；It should be noted that steam exhaust is power by itself overbottom pressure, to overcome the device
Resistance, cooling water section overcome this equipment self resistance by ductwork pressure, and cooling water uses technique demineralized water.
When using the utility model, condensation cycle water is discharged into shell and tube condenser first, while steam exhaust is also passed into column
Trumpet cooler, steam exhaust carry out first time heat exchange with recirculated water in shell and tube condenser, and condensate liquid is exported from the first condensation water
Discharge, recycles most of heat and steam in steam exhaust, and condensed water and on-condensible gas enter helical fin formula heat exchanger and carry out the
Secondary heat exchange, since the heat exchange area of helical fin formula heat exchanger is larger, heat transfer process realizes new hot-fluid balance, improves cold
The heat exchange efficiency of solidifying second half section, condensate liquid are exported from the second condensation water after collecting and are discharged, further in steam exhaust heat and
Steam is recycled.
In some embodiments, condensation water pipe network 7 is equipped with to shell and tube condenser 1 and helical fin formula heat exchanger 2
Keep the constant pressure arrangement 71 of pressure；Using the above design, the steam condensation side in condenser and cooler is made to keep certain pressure,
It is effective to accelerate vapor condensation.
In some embodiments, constant pressure arrangement 71 selects U-shaped water seal, and U-shaped water seal utilizes the pressure of water, natural right
Steam condensation side in condenser and cooler generates certain pressure, and structure is simple, reduces maintenance difficulty, and reduction is fabricated to
This.
In some embodiments, shell and tube condenser 1 and helical fin formula heat exchanger 2 are vertically arranged, the first cooling water
Entrance 11 is set to 1 upper end of shell and tube condenser, and the first cooling water outlet 12 is set to 1 lower end of shell and tube condenser, and the first steam exhaust enters
Mouth 13 is set to 1 lower end of shell and tube condenser；Second cooling water inlet 21 is set to 2 upper end of helical fin formula heat exchanger, and second is cooling
Water out 22 is set to 2 lower end of helical fin formula heat exchanger, and the second steam exhaust entrance 23 is set to 2 lower end of helical fin formula heat exchanger, adopts
With the above design, the direction of motion of condensate liquid and air-flow on the contrary, use counterflow heat exchange mode, counterflow heat exchange it is more efficient,
Heat transfer effect is more preferable.
In some embodiments, the first cooling water inlet 11 is connected to shell and tube condenser 1 with the first cooling water outlet 12
Tube layer, the first steam exhaust entrance 13 and the first steam exhaust outlet 14 is connected to the shells of shell and tube condenser 1；Second cooling water enters
Mouth 21 is connected to the tube layer of helical fin formula heat exchanger 2, the second steam exhaust entrance 23 and the second steam exhaust with the second cooling water outlet 22
Outlet 24 is connected to the shell of helical fin formula heat exchanger 2；Since tube layer volume is much smaller than shell volume, shell leads to be cooled weary
Vapour, steam exhaust can stay for some time in shell, be fully cooled, and tube layer leads to coolant liquid, can increase the flow velocity of circulating cooling liquid,
So that the cooling water in pipe remains lower temperature, the rate of recovery of the heat and steam to steam exhaust, In are effectively increased
In helical fin formula heat exchanger 2, the droplet of condensation can constantly increase along the fin spiral-falling, liquid-drop diameter, more added with
Conducive to condensation water collection.
In some embodiments, recirculated cooling water water outlet pipe network 3 is given at the first cooling water inlet 11 equipped with cooling water
Water regulating valve 31, recirculated cooling water reflux pipe network 4 are equipped with temperature sensor 41 at the second cooling water outlet 22；More than
Design can be observed the temperature of recirculated water water outlet at any time, the heat exchange of shell and tube condenser and helical fin formula heat exchanger is learnt with this
Effect, the size of the adjustable feed-regulating valve 31 of temperature according to the observation to change cooling water water velocity, and then adjust
Heat transfer effect.
In some embodiments, recirculated cooling water water outlet pipe network 3 is connected to technique desalination water storage bin；It further include process water
Pipe network 8, process water pipe network 8 are connected to recirculated cooling water reflux pipe network 4, and process water pipe network 8 is close to recirculated cooling water return pipe
It is equipped with cooling water at net 4 and goes out water regulating valve 81；Using the above design, cooling water uses technique demineralized water, the cooling water after heat exchange
Water temperature have certain temperature, if meet the water temperature of technique production requirement, can direct reuse is participated in into technique production and application.
It in some embodiments, further include DCS100, the temperature sensor 41, cooling water feed-regulating valve 31 and cooling
Water goes out the instrument such as water regulating valve 81 and is electrically connected DCS100, it should be noted that can increase or decrease one according to production needs
A little instrument and valve, convenient for the centralized control to instrument valve.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.
Claims (8)
1. heat-exchanger rig is recycled in a kind of shell-tube type steam exhaust, it is characterised in that: changed including shell and tube condenser (1) and helical fin formula
Hot device (2)；
The shell and tube condenser (1) is equipped with the first cooling water inlet (11), the first cooling water outlet (12), the first steam exhaust entrance
(13), the first steam exhaust outlet (14) and the first condensation water outlet (15)；
The helical fin formula heat exchanger (2) is equipped with the second cooling water inlet (21), the second cooling water outlet (22), the second steam exhaust
Entrance (23), the second steam exhaust outlet (24) and the second condensation water outlet (25)；
Shell and tube condenser (1) is connected to recirculated cooling water water outlet pipe network (3) by first cooling water inlet (11), and first is cold
But water out (12) connection the second cooling water inlet (21), helical fin formula heat exchanger (2) pass through the second cooling water outlet (22)
It is connected to recirculated cooling water reflux pipe network (4)；Shell and tube condenser (1) is connected to steam exhaust pipe network (5) by the first steam exhaust entrance (13),
First steam exhaust exports (14) and is connected to the second steam exhaust entrance (23), and helical fin formula heat exchanger (2) passes through the second steam exhaust outlet (24)
It is connected to steam exhaust discharger (6)；Shell and tube condenser (1) exports (15), helical fin formula heat exchanger (2) by the first condensation water
Condensation water pipe network (7) are respectively communicated with by the second condensation water outlet (25).
2. heat-exchanger rig is recycled in shell-tube type steam exhaust according to claim 1, it is characterised in that: the condensation water pipe network (7)
Equipped with the constant pressure arrangement (71) to keep pressure to the shell and tube condenser (1) and helical fin formula heat exchanger (2).
3. heat-exchanger rig is recycled in shell-tube type steam exhaust according to claim 2, it is characterised in that: the constant pressure arrangement (71) is
U-shaped water seal.
4. heat-exchanger rig is recycled in shell-tube type steam exhaust according to claim 1, it is characterised in that: the shell and tube condenser
(1) it is vertically arranged with helical fin formula heat exchanger (2), first cooling water inlet (11) is set to shell and tube condenser (1)
Upper end, first cooling water outlet (12) are set to shell and tube condenser (1) lower end, and the first steam exhaust entrance (13) is set to column
Trumpet cooler (1) lower end；Second cooling water inlet (21) be set to helical fin formula heat exchanger (2) upper end, described second
Cooling water outlet (22) is set to helical fin formula heat exchanger (2) lower end, and the second steam exhaust entrance (23) is set to helical fin formula
Heat exchanger (2) lower end.
5. heat-exchanger rig is recycled in shell-tube type steam exhaust according to claim 4, it is characterised in that: first cooling water inlet
(11) tube layer of shell and tube condenser (1), the first steam exhaust entrance (13) and are connected to the first cooling water outlet (12)
One steam exhaust exports the shell that (14) are connected to shell and tube condenser (1)；Second cooling water inlet (21) and the second cooling water
Export the tube layer that (22) are connected to helical fin formula heat exchanger (2), the second steam exhaust entrance (23) and the second steam exhaust outlet
(24) it is connected to the shell of helical fin formula heat exchanger (2).
6. heat-exchanger rig is recycled in shell-tube type steam exhaust according to claim 1, it is characterised in that: the recirculated cooling water water outlet
Pipe network (3) is equipped with cooling water feed-regulating valve (31) at the first cooling water inlet (11), the recirculated cooling water return pipe
Net (4) is equipped with temperature sensor (41) at the second cooling water outlet (22).
7. heat-exchanger rig is recycled in shell-tube type steam exhaust according to claim 1, it is characterised in that: the recirculated cooling water water outlet
Pipe network (3) is connected to technique desalination water storage bin.
8. heat-exchanger rig is recycled in shell-tube type steam exhaust according to claim 7, it is characterised in that: further include process water pipe network
(8), the process water pipe network (8) is connected to recirculated cooling water reflux pipe network (4), and process water pipe network (8) is close to circulation
It is equipped with cooling water at cooling water reflux pipe network (4) and goes out water regulating valve (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822136567.8U CN209558933U (en) | 2018-12-19 | 2018-12-19 | A kind of shell-tube type steam exhaust recycling heat-exchanger rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822136567.8U CN209558933U (en) | 2018-12-19 | 2018-12-19 | A kind of shell-tube type steam exhaust recycling heat-exchanger rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209558933U true CN209558933U (en) | 2019-10-29 |
Family
ID=68302851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822136567.8U Active CN209558933U (en) | 2018-12-19 | 2018-12-19 | A kind of shell-tube type steam exhaust recycling heat-exchanger rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209558933U (en) |
-
2018
- 2018-12-19 CN CN201822136567.8U patent/CN209558933U/en active Active
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